ELEMENTAL SULFUR FERTILIZERS AND THEIR USE ON CROPS AND PASTURES

被引：67

作者：

BOSWELL, CC

FRIESEN, DK

机构：

[1] AgResearch, Invermay Agricultural Centre, Mosgiel, Private Bag

[2] CIAT-Savannas Programme, Cali

来源：

FERTILIZER RESEARCH | 1993年 / 35卷 / 1-2期

关键词：

BENTONITE; CUBE ROOT MODEL; ELEMENTAL SULFUR FERTILIZERS; RATE OF OXIDATION; SULFUR COATED UREA;

D O I：

10.1007/BF00750226

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

This paper reviews the use of elemental sulfur (S degrees) as a fertiliser and its efficacy in different pastoral and cropping situations. The effect of S degrees particle size on rate of oxidation is critical to the effectiveness of S degrees fertilisers. Emphasis is therefore centred on the issue of how particle size of S degrees affects the rate of oxidation in different environments and cropping systems, and the size of S degrees in different S degrees fertiliser products. Rate constants of S degrees oxidation offer the opportunity to generalise particle size relationships needed in S degrees fertilisers for different crops in different environments, or alternatively, to calculate the agronomic effectiveness of different S degrees fertilisers available on the market. Conversely they offer a technique to set specifications as to S degrees particle size requirements, which together with dispersion rate specifications provide the basis for the design of S degrees fertilisers for specified crops and environments.

引用

页码：127 / 149

页数：23

共 115 条

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